The effects of interference on the RSSI values of a ZigBee based indoor localization system

Abstract

Indoor positioning systems (IPS) have gained a lot of traction within the research community in recent years. Received Signal Strength Indicator (RSSI) of wireless networks are the most commonly used metric for indoor localization. The objective of this paper is to see how Wi-Fi interferers of different data rates affect the packet RSSI values of TX-RX links in a ZigBee based indoor localization system. The factors we examine also include the rate of corrupted packets and the overall packet loss. We also explore whether a Microwave Oven, a common source of interference for the ISM Band in a dwelling, perturb RSSI values in a localization system.